🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.76 AU - 0.86 AU

Year: 270 Days

Day: 23.6 Hours

Environment

Temp: 168 °C

Axial Tilt: 44.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.56 AU - 2.7 AU

Year: 1582 Days

Day: 29.3 Hours

Environment

Temp: -93 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.6 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.8

Radius: 14.8

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.19 AU - 6.95 AU

Year: 6245 Days

Day: 8.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 77,207,377 km

• M1: 184,155 km (0.052 R)
• M2: 779,106 km (0.115 R)
• M3: 1,243,458 km (0.058 R)
• M4: 1,720,974 km (0.075 R)
• M5: 2,460,735 km (0.069 R)
• M6: 3,795,298 km (0.112 R)
• M7: 4,555,854 km (0.1 R)
• M8: 5,265,845 km (0.069 R)
• M9: 7,016,739 km (0.055 R)
• M10: 8,206,490 km (0.104 R)
• M11: 8,743,996 km (0.086 R)
• M12: 9,304,838 km (0.11 R)
• M13: 9,935,692 km (0.112 R)
• M14: 10,788,699 km (0.087 R)
• M15: 13,191,391 km (0.05 R)
• M16: 16,251,265 km (0.117 R)
• M17: 19,465,226 km (0.113 R)
• M18: 21,259,952 km (0.088 R)
• M19: 26,404,473 km (0.092 R)
• M20: 28,601,168 km (0.1 R)
• M21: 30,522,753 km (0.113 R)
• M22: 32,837,481 km (0.101 R)
• M23: 36,029,750 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.1

Radius: 13.6

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 6.02 AU - 7.22 AU

Year: 6317 Days

Day: 13.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,207,377 km

• M1: 169,195 km (0.1 R)
• M2: 693,985 km (0.117 R)
• M3: 1,235,230 km (0.034 R)
• M4: 2,251,298 km (0.114 R)
• M5: 3,167,735 km (0.105 R)
• M6: 3,900,316 km (0.054 R)
• M7: 4,952,737 km (0.082 R)
• M8: 5,417,986 km (0.091 R)
• M9: 5,852,867 km (0.086 R)
• M10: 6,342,351 km (0.046 R)
• M11: 7,723,289 km (0.055 R)
• M12: 8,427,596 km (0.12 R)
• M13: 10,936,352 km (0.08 R)
• M14: 12,213,918 km (0.075 R)
• M15: 14,395,803 km (0.081 R)
• M16: 18,853,820 km (0.109 R)
• M17: 20,200,799 km (0.108 R)
• M18: 24,157,363 km (0.11 R)
• M19: 26,235,278 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.7

Radius: 13.4

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 7.2 AU - 8.36 AU

Year: 8048 Days

Day: 14.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,207,377 km

• M1: 166,652 km (0.109 R)
• M2: 860,637 km (0.08 R)
• M3: 1,308,084 km (0.071 R)
• M4: 2,235,591 km (0.107 R)
• M5: 3,425,342 km (0.115 R)
• M6: 4,057,543 km (0.072 R)
• M7: 4,540,146 km (0.115 R)
• M8: 5,274,073 km (0.075 R)
• M9: 5,917,194 km (0.103 R)
• M10: 7,360,963 km (0.102 R)
• M11: 9,117,541 km (0.091 R)
• M12: 10,336,465 km (0.076 R)
• M13: 11,087,745 km (0.115 R)
• M14: 12,531,365 km (0.089 R)
• M15: 13,154,290 km (0.095 R)
• M16: 16,583,672 km (0.091 R)
• M17: 17,127,909 km (0.097 R)
• M18: 20,803,529 km (0.104 R)
• M19: 27,919,750 km (0.101 R)
• M20: 28,593,539 km (0.092 R)
• M21: 29,574,751 km (0.038 R)
• M22: 30,073,810 km (0.066 R)
• M23: 33,079,680 km (0.087 R)
• M24: 33,617,484 km (0.096 R)
• M25: 36,737,647 km (0.032 R)
• M26: 40,167,627 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.6

Radius: 15

Gravity: 0.06 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 7.7 AU - 11.54 AU

Year: 11065 Days

Day: 13 Hours

Environment

Temp: -167 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,207,377 km

• M1: 188,643 km (0.108 R)
• M2: 868,864 km (0.085 R)
• M3: 1,341,444 km (0.083 R)
• M4: 2,533,739 km (0.068 R)
• M5: 3,142,154 km (0.073 R)
• M6: 4,444,553 km (0.034 R)
• M7: 5,511,485 km (0.051 R)
• M8: 7,397,465 km (0.095 R)
• M9: 11,729,520 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784

Radius: 3.8

Gravity: 54.29 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 10.84 AU - 14.42 AU

Year: 16646 Days

Day: 17.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 77,207,377 km

• M1: 47,273 km (0.058 R)
• M2: 178,171 km (0.09 R)
• M3: 304,282 km (0.116 R)
• M4: 478,564 km (0.083 R)
• M5: 601,832 km (0.106 R)
• M6: 1,133,802 km (0.074 R)
• M7: 3,385,699 km (0.107 R)
• M8: 4,687,799 km (0.118 R)
• M9: 5,040,999 km (0.061 R)
• M10: 8,531,267 km (0.107 R)
• M11: 9,273,273 km (0.075 R)
• M12: 9,437,681 km (0.112 R)
• M13: 11,565,411 km (0.117 R)
• M14: 12,078,233 km (0.09 R)
• M15: 12,472,722 km (0.101 R)
• M16: 13,149,054 km (0.077 R)
• M17: 14,427,667 km (0.115 R)
• M18: 14,722,525 km (0.037 R)
• M19: 15,942,795 km (0.117 R)
• M20: 16,577,538 km (0.078 R)
• M21: 19,643,098 km (0.113 R)
• M22: 23,367,935 km (0.119 R)
• M23: 25,879,534 km (0.082 R)
• M24: 37,033,850 km (0.118 R)
• M25: 39,852,424 km (0.083 R)
• M26: 44,810,247 km (0.086 R)
• M27: 50,670,145 km (0.098 R)
• M28: 51,866,031 km (0.047 R)
• M29: 53,080,466 km (0.093 R)
• M30: 56,837,317 km (0.101 R)
• M31: 58,313,848 km (0.048 R)
• M32: 58,500,247 km (0.067 R)
• M33: 68,126,122 km (0.073 R)
• M34: 68,955,493 km (0.084 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.2

Radius: 5.9

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 17.07 AU - 19.95 AU

Year: 29533 Days

Day: 19.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 77,207,377 km

• M1: 76,744 km (0.117 R)
• M2: 439,070 km (0.114 R)
• M3: 963,709 km (0.05 R)
• M4: 1,492,688 km (0.078 R)
• M5: 1,896,751 km (0.094 R)
• M6: 2,305,154 km (0.12 R)
• M7: 3,025,467 km (0.05 R)
• M8: 3,702,248 km (0.104 R)
• M9: 5,586,433 km (0.052 R)
• M10: 7,581,321 km (0.1 R)
• M11: 9,773,079 km (0.097 R)
• M12: 10,245,210 km (0.088 R)
• M13: 10,794,384 km (0.105 R)
• M14: 11,753,007 km (0.102 R)
• M15: 13,619,390 km (0.086 R)
• M16: 13,911,704 km (0.102 R)
• M17: 15,201,088 km (0.041 R)
• M18: 15,674,715 km (0.086 R)
• M19: 17,069,715 km (0.091 R)
• M20: 19,637,413 km (0.049 R)
• M21: 21,550,920 km (0.109 R)
• M22: 22,756,978 km (0.101 R)
• M23: 24,113,382 km (0.085 R)
• M24: 26,304,242 km (0.097 R)
• M25: 26,530,285 km (0.082 R)
• M26: 28,863,413 km (0.037 R)
• M27: 29,956,674 km (0.119 R)
• M28: 30,327,079 km (0.098 R)
• M29: 30,825,838 km (0.109 R)
• M30: 37,815,350 km (0.072 R)
• M31: 42,137,531 km (0.1 R)
• M32: 44,818,325 km (0.108 R)
• M33: 45,141,008 km (0.109 R)
• M34: 45,791,011 km (0.118 R)
• M35: 47,109,716 km (0.109 R)
• M36: 55,557,657 km (0.095 R)
• M37: 58,199,256 km (0.078 R)
• M38: 58,776,106 km (0.11 R)
• M39: 60,923,583 km (0.086 R)
• M40: 63,528,232 km (0.089 R)
• M41: 66,415,171 km (0.042 R)
• M42: 66,624,758 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 18,867 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit